Joe:
That was my experience using my router spindle on my KF 700; never had an issue with router bits running at 15000 rpm.
Terry
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I posted a few weeks ago that I believed that routers slowed a lot under load. I decide how hard to push my routers based on the pitch the motor makes.? No load and the pitch is high, as the load increases the router slows down and the pitch drops.? I found this article from "American Woodworker" July/August 1993 page 42.? In a plunge router test they built a dynamometer that measured RPM and torque to test each router.? Some had electronic variable speed control which compensates and some did not.? Interestingly all dropped speed quite a bit under load.? Under light to medium load they dropped from rated (max) RPM to between 18,000-20,000 RPM.? Under heavy load they dropped to around 15,000 RPM.? Your the 5 HP motor in my Felder shaper, or the 7.5HP motor in my other Felder shaper no router bit is going to slow the spindle down.? Therefore I maintain that 15,000 RPM for a router spindle in a shaper is not much if a change compared to a router.? especially for any bit one would be likely to run with a router in a router table.? JPG file of the chat from the article attached.
<router speed under load.jpg>
